1268201636212 has 24 divisors (see below), whose sum is σ = 2537016310080. Its totient is φ = 543383621760.

The previous prime is 1268201636209. The next prime is 1268201636291. The reversal of 1268201636212 is 2126361028621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5355589 + ... + 5587372.

It is an arithmetic number, because the mean of its divisors is an integer number (105709012920).

Almost surely, 2^{1268201636212} is an apocalyptic number.

It is an amenable number.

1268201636212 is an abundant number, since it is smaller than the sum of its proper divisors (1268814673868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1268201636212 is a wasteful number, since it uses less digits than its factorization.

1268201636212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10947111 (or 10947109 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 1268201636212 in words is "one trillion, two hundred sixty-eight billion, two hundred one million, six hundred thirty-six thousand, two hundred twelve".